Professor David Williams

Professor

School of Civil Engineering
Faculty of Engineering, Architecture and Information Technology
d.williams@uq.edu.au
+61 7 336 53642

Overview

Professor David John Williams is the Golder Professor of Geomechanics and the Director of the Geotechnical Engineering Centre within the School of Civil Engineering at The University of Queensland. The Centre is supported by Golder Associates, Rio Tinto, AngloGold Ashanti and BHP Billiton, with matching funding from UQ, to a total of $1.2 million/year. It supports unique and highly successful Geotechnical Engineering Undergraduate Programs, and extensive research in Geotechnical Engineering. David’s primary research and consulting interests lie in the application of geotechnical principles to the management and rehabilitation of mine wastes, for which he enjoys an international reputation.

David received his BE (Hons I) in Civil Engineering from Monash University in 1975 and his PhD in Soil Mechanics from the University of Cambridge in 1979. His research interests include:

  • Physical characterisation of mine tailings deposition, including beaching, hydraulic sorting, sedimentation, consiolidation, desiccation and loading
  • Store and release cover systems for potentially acid forming mine wastes
  • Co-disposal of mine tailings and coarse-grained mine wastes
  • Dewatering and densification of mine tailings
  • Dewatering of mineral products
  • Moisture movement within mine wastes
  • Settlement of coarse-grained mine wastes
  • Strength of coarse-grained mine wastes
  • Engineered rehabilitation of mine sites
  • Risk assessment and cost-effectiveness analysis of mine site rehabilitation and closure
  • Long-term seepage and runoff from mine tailings storages
  • Characterisation of potentially acid forming waste rock dumps
  • Application of high-resolution digital stereo-photography to monitoring erosion from mine waste slopes
  • Mined landform evolution and design

Research Impacts

Professor Williams' research on mine tailings continues to be applied to improve the dewatering and densification of tailings deposited as a slurry. He developed the store and release cover system for potentially acid forming mine wastes for application in semi-arid and seasonally dry climates, which has been applied worldwide. He characterised the deposit formed on the pumped co-disposal of coal mine washery wastes; a method that has been widely adopted in the coalfields of eastern Australia and Indonesia. The co-disposal of coarse-grained mine wastes and tailings is also being applied. His research on the wetting-up of mine waste rock dumps has contributed to understanding of rainfall infiltration into and seepage from waste rock dumps.

The shear strength and settlement of coarse-grained mine wastes have become important as the scale of waste rock dumps and spoil piles increases. Professor Williams has been a pioneer in the applcation of risk assessment and cost-effectiveness analysis to mine site rehabilitation and closure. In addition, he applied high-resolution digital stereo-photography to monitoring erosion from mine waste slopes. He has pioneered mined landform evolution and design.

Qualifications

  • PhD, University of Cambridge
  • Bachelor of Engineering (Honours1), Monash University

Publications

View all Publications

Available Projects

  • Risk assessment and cost-effectiveness analysis techniques are becoming an essential tool in defending the choice of rehabilitation strategy for open cut mines. An existing risk assessment and cost-effectiveness analysis tool developed for the rehabilitation of open cut coal mine spoil areas will be applied to a number of typical spoil areas, and the cost-effectiveness of different rehabilitation strategies assessed.

  • Surface coal mining by dragline leaves a legacy of surface disturbance in the form of spoil piles. The rehabilitation of spoil pile areas involves substantial earthworks, which constitute the major cost of rehabilitation. Minimising the amount of earthworks required minimises the cost of rehabilitation. Typically, spoil piles are reshaped from the angle of repose of the spoil (about 37 degrees) to a constant angle of less than 10 degrees. An alternative strategy would be to reproduce, as closely as possible, the pre-mining distribution of slope angles and lengths, which can be determined from pre-mining topographic plans. By comparing the pre-mining and post-mining topographic plans, it is possible to determine the minimum earthworks required to mimic the general pre-mining landform.

  • The requirements of a cover material for potentially contaminating materials, whether they be sulphidic or saline mine wastes, industrial, or domestic wastes, is that the material can achieve a low hydraulic conductivity, preferably hold saturation, be resistant to desiccation and erosion, and possibly be suitable as a growth medium. There is potential for mixtures of inert, durable waste rock and tailings to satisfy these requirements. A range of waste rock and tailings mixtures will be assessed for their suitability in the laboratory.

View all Available Projects

Publications

Book

Book Chapter

  • Topal, E. and Williams, D. J. (2013). Mine waste rock management. In W. J. Rankin (Ed.), Australasian mining and metallurgical operating practices 3rd ed. (pp. 76-77) Carlton, VIC, Australia: Australasian Institute of Mining and Metallurgy.

  • Williams, David J. (2005). Placing covers on soft tailings. In Buddhima Indraratna and Jian Chu (Ed.), Ground Improvement: Case histories (pp. 491-512) Amsterdam ; Boston: Elsevier.

  • Williams, D. J. (2001). Assessment of embankment parameters. In Hustrulid, W. A., McCarter, M. C. and van Zyl, D. J. A. (Ed.), Slop Stability in Surface Mining 1 ed. (pp. 275-284) Littleton, Colorado, USA: Society of Mining, Metallurgy and Exploration.

  • Williams, D. J. (1996). Minimisation and Management of Solid Wastes. In Mulligan, D. R. (Ed.), Environmental Management in the Australian Minerals and Energy Industry (pp. 157-188) Sydney: UNSW Press in association with Australian Minerals and Energy Environment Foundation.

Journal Article

Conference Publication

  • Llano-Serna, Marcelo, Williams, David John and Ruest, Marc R. (2017). Analysis of Tailings Dam-Break and Run-Out. In: 4th International Seminar on Tailings Management, Tailings 2017 Proceedings. 4th International Seminar on Tailings Managment, Santiago de Chile, Chile, (). 12-14 July 2017.

  • Lines, Scott, Williams, David J. and Galindo-Torres, Sergio A. (2017). Determination of thermal conductivity of soil using standard cone penetration test. In: 2nd International Conference on Advances on Clean Energy Research, ICACER 2017. 2nd International Conference on Advances on Clean Energy Research, ICACER 2017, Berlin, Germany, (172-178). 7 - 9 April 2017. doi:10.1016/j.egypro.2017.07.036

  • Serati, Mehdi, Williams, David J., del Pilar Durante Ingunza, Maria and Quintero Olaya, Sebastian (2017). Effect of Waste Additives on Mechanical Strength of Fired Clay Bricks. In: Proceedings of the 32nd International Conference on Solid Waste Technology and Management. The 32nd International Conference on Solid Waste Technology and Management, Philadelphia, PA, USA, (89-97). 19-22 March 2017.

  • Xu, Youwei, Williams, David and Serati, Mehdi (2017). Effect of scalping on shear strength of aggregate. In: 51st US Rock Mechanics/Geomechanics Symposium. 51 st US Rock Mechanics / Geomechanics Symposium, San Francisco, CA, United States, (). 25-28 June 2017.

  • Quintero Olaya, Sebastian, Williams, David J., del Pilar Durante Ingunza, Maria and Serati, Mehdi (2017). Geotechnical characterisation of neutralised red mud for use in civil engineering construction and manufacturing. In: Proceedings of the 32nd International Conference on Solid Waste Technology and Management. The 32nd International Conference on Solid Waste Technology and Management, Philadelphia, PA, USA, (613-623). 19-22 March 2017.

  • Lines, Scott H., Llano Serna, Marcelo, Williams, David J. and Galindo-Torres, Sergio (2017). Geothermal site selection based on varying thermal parameters using the finite cylinder source method. In: International Doctoral Students Conference. International Doctoral Students Conference, Hangzhou, China, (). 22-25 May 2017.

  • Xu, Youwei, Williams, David and Serati, Mehdi (2017). Investigation of shear strength and breakdown of mine waste rock. In: 51st US Rock Mechanics/Geomechanics Symposium. 51st US Rock Mechanics/Geomechanics Symposium, San Francisco, CA United States, (). 25-28 June 2017.

  • Serati, Mehdi, Masoumi, Hossein, Williams, David J. and Alehossein, Habib (2017). Modified Brazilian Test for Indirect Measurement of Tensile Strength of Brittle Materials. In: ARMA 2017: 51st U.S. Rock Mechanics/Geomechanics Symposium, San Francisco, USA, (). 25-28 June 2017.

  • Masoumi, Hossein, Serati, Mehdi, Williams, David J. and Alehossein, Habib (2017). Size Dependency of Intact Rocks with High Brittleness: A Potential Solution to Eliminate Secondary Fractures in Brazilian Test. In: ARMA 2017: 51st U.S. Rock Mechanics/Geomechanics Symposium, San Francisco, USA, (). 25-28 June 2017.

  • Septian, Alfred, Llano-Serna, Marcelo A., Ruest, Marc R. and Williams, David J. (2017). Three-dimensional kinematic analysis of Bingham canyon mine pit wall slides. In: 1st International Conference on the Material Point Method, MPM 2017. 1st International Conference on the Material Point Method, MPM 2017, Delft, Netherlands, (86-93). 10-13 January 2017. doi:10.1016/j.proeng.2017.01.030

  • Llano-Serna, M. A., Williams, David J. and Ruest, M. R. (2016). Analysis of Kennecott Utah Copper's Bingham Canyon Mine Pit Wall Slides. In: Proceedings Tailings and Mine Waste 2016. Tailings and Mine Waste' 16, Keystone, Colorado, USA, (787-794). 2-5 October 2016.

  • Williams, D. J. and King, G. (2016). Capping of a surface slurried coal tailings storage facility. In: Andy Fourie and Mark Tibbett, Mine Closure 2016: Proceedings of the 11th International Conference on Mine Closure. Mine Closure 2016, Perth, WA, Australia, (263-275). 15-17 March 2016.

  • Serati, Mehdi, Williams, David J. and Tiryaki (Erarslan), Nazife (2016). Hertzian contact damage in a hollow circular cylinder. In: Omer Aydan, Resat Ulusay, Ergun Tuncay, Mehmet Ali Hindistan and Hasan Gercek, Rock Mechanics and Rock Engineering: from the Past to the Future. Eurock 2016: ISRM International Symposium, Cappadocia, Turkey, (). 29-31 August, 2016.

  • Williams, D. J. (2016). Mine site rehabilitation - are we reinventing the wrong wheel?. In: Andy Fourie and Mark Tibbett, Mine Closure 2016: Proceedings of the 11th International Conference on Mine Closure. Mine Closure 2016, Perth, WA, Australia, (595-608). 15-17 March 2016.

  • Williams, D. J. (2016). Mine site rehabilitation - laying geotechnical foundations. In: Mine Closure 2014: Proceedings of the Ninth International Conference on Mine Closure. Mine Closure 2014: Ninth International Conference on Mine Closure, Johannesburg, South Africa, (1-14). 1-3 October 2014.

  • Fu, Z., Li, Y., Topal, E. and Williams, D. J. (2015). A new tool for optimisation of mine waste management in potential acid forming conditions. In: Farshad Rashidi Nejad, Tailings and Mine Waste Management for the 21st Century. Tailings and Mine Waste Management for the 21st Century, Sydney, Australia, (). 27-28 July 2015.

  • Williams, David J., Taylor, G. and Herbert, D. (2015). An attempt to estimate waste rock and soil shear strengths based upon strengths of intact rock cores. In: Tailings and mine Waste 2015, Vancover, BC, Canada, (). 26-28 October 2015.

  • Kho, A. K. and Williams, D. J. (2015). Bulking and settlement of weakly-cemented and cemented coal mine spoil. In: Graham Ramsay, ANZ 2015: The Changing Face of the Earth - Geomechanics & Human Influence. 12th Australia New Zeland Conference on Geomechanics, Wellington, New Zealand, (908-915). 22-25 February 2015.

  • Larisch, M.D., Williams, D.J. and Scheuermann, A. (2015). Effects of installation parameters of drilled displacement piles on in situ stress conditions in stiff clays. In: M. G. Winter, D. M. Smith, P. J. L. Eldred and D. G. Toll, Geotechnical Engineering for Infrastructure and Development: Proceedings of the XVI European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015. 16th European Conference on Soil Mechanics and Geotechnical Engineering, ECSMGE 2015, Edinburgh, United Kingdom, (1121-1126). 13-17 September 2015.

  • Williams, David J. (2015). How stable are angle-of-repose coarse-grained mine waste slopes?. In: Slope Stability 2015, Cape Town, South Africa, (). 12-14 October 2015.

  • Kho, A. K., Tucker, N., Williams, D. J. and Shokouhi, A. (2015). Impact of co-disposing mixed plant rejects on spoil pile settlements. In: Farshad Rashidi Nejad, Tailings and Mine Waste Management for the 21st Century. Tailings and Mine Waste Management for the 21st Century, Sydney, Australia, (). 27-28 July 2015.

  • Larisch, Martin D., Williams, David J. and Scheuermann, Alexander (2015). Influence of pile installation techniques on ground heave in clays. In: 12th Australia New Zeland Conference on Geomechanics, Wellington, New Zealand, (). 22-25 February 2015.

  • Shokouhi, A., Williams, D. J. and Zbik, M. (2015). Influence of water on particle size distribution of clay mineral-rich coarse coal reject. In: Farshad Rashidi Nejad, Tailings and Mine Waste Management for the 21st Century. Tailings and Mine Waste Management for the 21st Century, Sydney, Australia, (). 27-28 July 2015.

  • Serati, Mehdi and Williams, David J. (2015). Michell–Fourier analytical treatment of stresses in the ring test under parabolic compression. In: 49th US Rock Mechanics / Geomechanics Symposium 2015. US Rock Mechanics/Geomechanics Symposium, San Francisco, CA, United States, (2875-2880). 29 June - 1 July 2015.

  • Erarslan, N., Ghamgoshar, M. and Williams, D. J. (2015). Micro-mechanical and micro-structural aspects of strength variation in rocks under various loading conditions. In: Mehtap Gulsun Kilic, Oznur Onel, Hakan Basarir, Mehmet Karadeniz and Elif Torun Bilgic, Proceedings of the 24th International Mining Congress of Turkey, IMCET 2015. 24th International Mining Congress of Turkey, IMCET 2015, Antalya, Turkey, (554-560). 14-17 April 2015.

  • Tun, Y. W., Pedroso, D. M., Scheuermann, A. and Williams, D. J. (2015). Multiple-slopes stability assessment by limit equilibrium and genetic algorithms. In: Fusao Oka, Akira Murakami, Ryosuke Uzuoka and Sayuri Kimoto, Computer Methods and Recent Advances in Geomechanics - Proc. of the 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014. 14th International Conference of International Association for Computer Methods and Recent Advances in Geomechanics, IACMAG 2014, Kyoto, Japan, (1427-1432). 22-25 September 2014. doi:10.1201/b17435-251

  • Zhu, L., Erarslan, N., Williams, D. J., Serati, M. and Ghamgosar, M. (2015). Numerical study of rock aggregate materials under various loadings. In: 49th US Rock Mechanics / Geomechanics Symposium 2015. US Rock Mechanics/Geomechanics Symposium, San Francisco, CA, United States, (681-685). 29 June - 1 July 2015.

  • Lacey, D. W., Look, B. G and Williams, D. J. (2015). Relative modulus improvement due to inclusion of geo-reinforcement within a gravel material. In: ANZ 2015: The Changing Face of the Earth - Geomechanics & Human Influence. 12th Australia New Zealand Conference on Geomechanics, Wellington, New Zealand, (940-947). 22-25 February 2015.

  • Williams, David J. (2015). Selection of shear strength profile for desiccated tailings to support an upstream raise. In: Tailings and Mine Waste 2015, Vancouver, BC, Canada, (). 26-28 October 2015.

  • Serati, Mehdi, Tiryaki (Erarslan), Nazife and Williams, David J. (2015). The ring test under general interior and exterior loading. In: ISRM Congress 2015: Innovations in Applied and Theoretical Rock Mechanics. The 13th International Congress of Rock Mechanics-ISRM Congress 2015, Montreal, Canada, (A97-A97). 10-13 May 2015.

  • Williams, D. J. (2015). Towards the elimination of conventional surface slurried tailings storage facilities. In: Tailings and Mine Waste Management for the 21st Century. Tailings and Mine Waste Management for the 21st Century, Sydney, Australia, (B238-B238). 27-28 July 2015.

  • Marques, Eduardo and Williams, David J. (2015). Weathering profiles of some sandstones from Sunshine Coast, Australia - morphological and geotechnical approach. In: 49th US Rock Mechanics / Geomechanics Symposium 2015. 49th US Rock Mechanics / Geomechanics Symposium 2015, San Francisco, CA, United States, (1133-1140). 29 June - 1 July 2015.

  • Williams, D. J. (2014). An alternative whole-of-life approach to tailings management. In: Life-of-Mine 2014: Delivering sustainable legacies through integrated life-of-mine planning. Life-of-Mine 2014, Brisbane, QLD, Australia, (285-298). 16-18 July 2014.

  • Galindo Torres, Sergio, Pedroso, Dorival, Williams, David and Muhlhaus, Hans (2014). An analysis of the strength of anisotropic granular assemblies via discrete methods. In: Advances in Computational Mechanics. 1st Australasian Conference on Computational Mechanics (ACCM2013), Sydney, Australia, (525-530). 3-4 October 2013. doi:10.4028/www.scientific.net/AMM.553.525

  • Williams, D. J., Kirsch, P. A., Gasparon, M., Baumgartl, T., Edraki, M., Rowe, D. and Harris, J. (2014). Application of RISKGATE to coal mine tailings dams. In: Life-of-Mine 2014: Delivering sustainable legacies through integrated life-of-mine planning. Life-of-Mine 2014, Brisbane, QLD, Australia, (219-230). 16-18 July 2014.

  • Williams, D. J. (2014). Applying geomechanics principles to mine waste management. In: Abdelmalek Bouazza, Sam Yuen and Bruce Brown, Congress Proceedings eBook: 7th International Congress on Environmental Geotechnics. 7th International Congress on Environmental Geotechnics: Lessons, Learnings & Challenges, Melbourne, VIC, Australia, (198-205). 10-14 November 2014. doi:10.1017/CBO9780511618581.012

  • Williams, D. J. (2014). Applying soil mechanics principles to tailings dewatering, densification and strengthening. In: Tailings and Mine Waste '14. 18th International Conference on Tailings and Mine Waste, Keystone, CO, United States, (97-106). 5-8 October 2014.

  • Ghamgosar, M., Erarlsan, N. and Williams, D. J. (2014). Assessment of rock mechanics parameters for improved waste disposal management and containment. In: Abdelmalek Bouazza, Sam Yuen and Bruce Brown, Congress Proceedings eBook: 7th International Congress on Environmental Geotechnics. 7th International Congress on Environmental Geotechnics: Lessons, Learnings & Challenges, Melbourne, VIC, Australia, (272-279). 10-14 November 2014.

  • Chapman, P. J. and Williams, D. J. (2014). Comparison of field and laboratory data in relation to cover design on TSF closure. In: N. Khalili, A. R. Russell and A. Khoshghalb, Unsaturated Soils: Research and Applications: Proceedings of the 6th International Conference on Unsaturated Soils: UNSAT 2014. 6th International Conference on Unsaturated Soils (UNSAT 2014), Sydney, Australia, (1475-1480). 2-4 July 2014. doi:10.1201/b17034-215

  • Indrawan, I. G. B., Williams, D. J. and Scheuermann, A. (2014). Comparison of tensiometer, thermal conductivity and capacitance sensor measurements of pore water pressure in compacted clay columns. In: Unsaturated Soils: Research and Applications: Proceedings of the 6th International Conference on Unsaturated Soils: UNSAT 2014. 6th International Conference on Unsaturated Soils (UNSAT 2014), Sydney, Australia, (1587-1595). 2-4 July 2014. doi:10.1201/b17034-232

  • Ghamgosar, M., Erarslan, N. and Williams, D. J. (2014). Evolution of damage on tensile fracturing of rock by means of elastic ultrasonic wave velocity. In: R. Alejano, Áurea Perucho, Claudio Olalla and Rafael Jiménez, Rock Engineering and Rock Mechanics: Structures in and on Rock Masses. 2014 ISRM European Regional Symposium on Rock Engineering and Rock Mechanics: Structures in and on Rock Masses, EUROCK 2014, Vigo, Spain, (297-302). 26-28 May 2014.

  • Schwing, M., Chen, Z., Scheuermann, A., Williams, D. J. and Wagner, N. (2014). Experimental study on the relationship of mechanic and hydraulic state variables, and the dielectric properties of clays. In: N. Khalili, A. R. Russell and A. Khoshghalb, Unsaturated Soils: Research and Applications - Proceedings of the 6th International Conference on Unsaturated Soils, UNSAT 2014. 6th International Conference on Unsaturated Soils (UNSAT 2014), Sydney, Australia, (247-253). 2-4 July 2014. doi:10.1201/b17034-33

  • Williams, David J. (2014). Improved tailings management - How to achieve optimal water recovery and tailings density, and facilitate closure. In: John Wates, Proceedings Book: 5th International Mining and Industrial Waste Management Conference. 5th International Mining and Industrial Waste Management Conference, Rustenburg, South Africa, (1-20). 10-12 March 2014.

  • Williams, David J. (2014). Improved waste rock management - How to minimise potential AMD, and facilitate closure. In: John Wates, Proceedings Book: 5th International Mining and Industrial Waste Management Conference. 5th International Mining and Industrial Waste Management Conference, Rustenburg, South Africa, (1-17). 10-12 March 2014.

  • Williams, D. J. and Kho, A. K. (2014). Laboratory compression of scalped coal mine spoil materials tested under dry and wet conditions. In: N. Khalili, A. R. Russell and A. Khoshghalb, Unsaturated Soils: Research and Applications: Proceedings of the 6th International Conference on Unsaturated Soils: UNSAT 2014. 6th International Conference on Unsaturated Soils (UNSAT 2014), Sydney, Australia, (1551-1557). 2-4 July 2014. doi:10.1201/b17034-227

  • Shokouhi, A., Williams, D. J. and Kho, A. K. (2014). Laboratory testing of mixtures of coal mine washery wastes. In: Abdelmalek Bouazza, Sam Yuen and Bruce Brown, Congress Proceedings eBook: 7th International Congress on Environmental Geotechnics. 7th International Congress on Environmental Geotechnics: Lessons, Learnings & Challenges, Melbourne, VIC, Australia, (910-917). 10-14 November 2014.

  • Galindo Torres, Sergio, Scheuermann, Alexander, Williams, David and Muhlhaus, Hans (2014). Micro-mechanics of contact erosion. In: Grant P. Steven, Qing Li and Zhongpu (Leo) Zhang, Advances in Computational Mechanics. 1st Australasian Conference on Computational Mechanics (ACCM2013), Sydney, Australia, (513-518). 3-4 October 2013. doi:10.4028/www.scientific.net/AMM.553.513

  • Williams, David J. (2014). Mine planning for the final landform. In: John Wates, Proceedings Book: 5th International Mining and Industrial Waste Management Conference. 5th International Mining and Industrial Waste Management Conference, Rustenburg, South Africa, (1-52). 10-12 March 2014.

  • Gholami Korzani, Maziar, Galindo Torres, Sergio, Williams, David and Scheuermann, Alexander (2014). Numerical simulation of tank discharge using smoothed particle hydrodynamics. In: Grant P. Steven, Qing Li and Zhongpu (Leo) Zhang, Advances in Computational Mechanics. 1st Australasian Conference on Computational Mechanics (ACCM2013), Sydney, Australia, (168-173). 3-4 October 2013. doi:10.4028/www.scientific.net/AMM.553.168

  • Kirsch, P., Hebblewhite, B., Sprott, D., Harris, J., Li, J., Shi, M., Whittaker, B., Galvin, J. M., Bergin, P., Mitra, R. and Williams, D. (2014). RISKGATE – Shared Coal Mining Knowledge for Managing Risks across Ground Management. In: AusRock 2014 : third Australasian Ground Control in Mining Conference. 3rd Australian Ground Control Mining Conference, Sydney, NSW Australia, (247-254). 5 - 6 November 2014.

  • Williams, D. J., Wilson, G. W., Scott, P. A., Hutcheson, B., Kent, S. and Hughes, A. (2014). Savage River rehabilitation project - 2002 to 2013. In: H. Miller and L. Preuss, Proceedings of the Eighth Australian Workshop on Acid Metalliferous Drainage. Eighth Australian Workshop on Acid Metalliferous Drainage, Adelaide, SA, Australia, (21-36). 29 April - 2 May 2014.

  • Shokouhi, A., Williams, D. J. and Kho, A. K. (2014). Settlement and collapse behaviour of coal mine spoil and washery wastes. In: Daniel Overton, Tailings and Mine Waste '14: Proceedings of the 18th International Conference on Tailings and Mine Waste. Tailings and Mine Waste '14, Keystone, CO, United States, (107-116). 5-8 October 2014.

  • Serati, Mehdi, Alehossein, Habib, Erarslan, Nazife and Williams, David J. (2013). 3D elastic solutions for point load and Brazilian indirect tensile strength tests. In: Marek Kwaśniewski and Dariusz Łydżba, Rock mechanics for resources, energy and environment : Proceedings of Eurock 2013 - The 2013 ISRM International Symposium. Eurock 2013: ISRM International Symposium, Wrocław, Poland, (887-892). 23-26 September 2013. doi:10.1201/b15683-152

  • Lacey, David, Look, Burt and Williams, David (2013). Assessment of relationship between insitu modulus derived from DCP and LFWD testing. In: Yu-Jun Cui, Fabrice Emeriault, Fahd Cuira, Siavash Ghabezloo, Jean-Michel Pereira, Michael Reboul, Hugo Ravel and Anh Minh Tang, Proceedings of the 5th International Young Geotechnical Engineers' Conference: 5th iYGEC 2013. 5iYGEC’13: 5th International Young Geotechnical Engineers' Conference, Marne-la-Vallée, France, (379-382). 31 August-2 September, 2013. doi:10.3233/978-1-61499-297-4-379

  • Williams, David J., Delport, Timothy M. A. and Whitton, M. Stuart (2013). Characterising settling and dewatering of slurries of commercial clays and clay-rich coal tailings. In: G. Ward Wilson, David C. Sego and Nicholas A. Beier, Proceedings of the Seventeenth International Conference on Tailings and Mine Waste 2013. Tailings and Mine Waste '13. TMW-2013: Tailings and Mine Waste '13. The 17th International Conference on Tailings and Mine Waste 2013, Banff, AB, Canada, (347-356). 3-6 November, 2013.

  • Khan, Misbah, Mesbah, Mahmoud, Ferreira, Luis and Williams, David (2013). Development of a road deterioration model incorporating flooding. In: 36th Australasian Transport Research Forum (2013 ATRF), Brisbane, Australia, (). 2-4 October 2013.

  • Lacey, David, Look, Burt and Williams, David (2013). Evaluation of common interpolation algorithms for site characterization. In: James L. Withiam, Kok-Kwang Phoon and Mohamad H. Hussein, Foundation Engineering in the Face of Uncertainty: Honoring Fred H. Kulhawy. 2013 GeoCongress, San Diego, United States, (421-433). March 3-7 2013. doi:10.1061/9780784412763.032

  • Indrawan, I. G. B., Williams, D. J. and Scheuermann, A. (2013). Hydraulic conductivity of compacted clay liners moisture-conditioned and permeated with saline coal seam gas water. In: Pierre Delage, Jacques Desrues, Roger Frank, Alain Puech and François Schlosser, Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering: Challenges and Innovations in Geotechnics. ICSMGE 2013: 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, France, (3029-3032). 2-6 September, 2013.

  • Williams, D. J. (2013). Improving performance of soil covers over waste rock dump tops in dry climates. In: M. Tibbett, A. B. Fourie and C. Digby, Mine Closure 2013: Proceedings of the Eighth International Conference on Mine Closure. Mine Closure 2013: Eighth International Conference on Mine Closure, Cornwall, United Kingdom, (265-278). 18-20 September, 2013.

  • Williams, D. J. and Kho, A. K. (2013). Settlement and shear strength of uncemented coal mine overburden materials placed loose under dry and wet conditions. In: Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering: Challenges and Innovations in Geotechnics. ICSMGE 2013: 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, France, (441-444). 2-6 September, 2013.

  • Kho, A. K., Williams, D. J., Kaneko, N. and Smith, N. J. W. (2013). Shear strength parameters for assessing geotechnical slope stability of open pit coal mine spoil based on laboratory tests. In: Phil M. Dight, Slope Stability 2013: Proceedings of the 2013 International Symposium on Slope Stability in Open Pit Mining and Civil Engineering. Slope Stability 2013, Brisbane, QLD, Australia, (867-880). 25-27 September, 2013.

  • Larisch, M. D., Arnold, M., Uhlig, M., Schwiteilo, E., Williams, D. J. and Scheuermann, A. (2013). Stress and displacement monitoring of auger displacement piles. In: Proceedings of Pile 2013: International Conference on State of the Art of Pile Foundation and Pile Case Histories. PILE 2013: International Conference on State of the Art of Pile Foundation and Pile Case Histories, Bandung, West Java, Indonesia, (1-12). 2-4 June, 2013.

  • Erarslan, N., Williams, D. J. and Shokouhi, A. (2013). Tensile fracturing of anisotropic Brisbane phyllite. In: Marek Kwaśniewski and Dariusz Łydżba, Rock mechanics for resources, energy and environment: Proceedings of Eurock 2013. The 2013 ISRM International Symposium. Eurock 2013: ISRM International Symposium, Wrocław, Poland, (271-274). 23-26 September, 2013. doi:10.1201/b15683-44

  • To, Huu Duc, Scheuermann, Alexander and Williams, David J. (2012). A new simple model for the determination of the pore constriction size distribution. In: ICSE-6: 6th International Conference on Scour and Erosion proceedings. 6th International Conference on Scour and Erosion (ICSE-6), Paris, France, (295-303). 27 - 31 August 2012.

  • Kho, A. K. and Williams, D. J. (2012). A test procedure for particle sizing via digital image processing. In: G. Narsilio, A. Arulrajah and J. Kodikara, ANZ 2012 Conference Proceedings. 11th Australia - New Zealand Conference on Geomechanics, Melbourne, Australia, (227-232). 15-18 July 2012.

  • Serati, Mehdi, Alehossein, Habib and Williams, David J. (2012). Analytical and numerical study of hard rock cutting with roller disc cutters. In: Proceedings of the ASME 2012 International Mechanical Engineering Congress and Exposition (IMECE2012). ASME 2012 International Mechanical Engineering Congress and Exposition (IMECE2012), Houston, TX, United States, (). 9-15 November 2012.

  • Karlovsek, Jurij, Wagner, Norman, Bonitz, Frank and Williams, David J. (2012). Broadband dielectric spectroscopy of undisturbed soil samples. In: Proceedings of the 34th International Geological Congress 2012. 34th International Geological Congress Australia 2012 (IGC), Brisbane, Australia, (1143-1143). 5-10 August 2012.

  • Erarslan, N. and Williams, D. J. (2012). Damage mechanism of rock fatigue. In: G. Narsilio, A. Arulrajah and J. Kodikara, ANZ 2012 Conference Proceedings. 11th Australia - New Zealand Conference on Geomechanics, Melbourne, Australia, (1502-1507). 15-18 July 2012.

  • Erarslan, N. and Williams, D. J. (2012). Determination of Indirect Tensile Strength (ITS) of rocks. In: G. Narsilio, A. Arulrajah and J. Kodikara, ANZ 2012 Conference Proceedings. 11th Australia - New Zealand Conference on Geomechanics, Melbourne, Australia, (1496-1501). 15-18 July 2012.

  • Indrawan, I. Gde Budi, Williams, David John and Scheuermann, Alexander (2012). Determination of the true electrical conductivity of a saline clay. In: G. Narsilio, A. Arulrajah and J. Kodikara, ANZ 2012 Conference Proceedings: Ground Engineering in a Changing World. 11th Australia - New Zealand Conference on Geomechanics, Melbourne, Australia, (95-95). 15-18 July 2012.

  • Erarslan, Nazife and Williams, David John (2012). Effect of microstructural and mineralogical features on the mechanical behaviour of rocks under static and cyclic loading. In: Proceedings of the 34th International Geological Congress 2012. 34th International Geological Congress 2012 (IGC), Brisbane, Australia, (3010-3010). 5-10 August 2012.

  • Liang, W.-M., Liu, H.Y., Yang, X.-L. and Williams, D.J. (2012). Effects of decoupled charge blasting on rock fragmentation efficiency. In: Qihu Qian and Yingxin Zhou, Harmonising Rock Engineering and the Environment : Proceedings of the 12th ISRM International Congress on Rock Mechanics. 12th International Congress on Rock Mechanics of the International Society for Rock Mechanics, ISRM 2011, Beijing, China, (1237-1240). 18-21 October 2011.

  • Indrawan, I. Gde, Williams, David John and Scheuermann, Alexandar (2012). Effects of saline coal-seam gas water on consistency limits and compaction characteristics of clay liners. In: Proceedings of the 34th International Geological Congress 2012. 34th International Geological Congress 2012 (IGC), Brisbane, Australia, (3195-3195). 5-10 August 2012.

  • Erarslan, N. and Williams, D. J. (2012). Fracturing behavior of inclined cracks under Static and Cyclic Loading. In: 46th US Rock Mechanics / Geomechanics Symposium 2012 Proceedings. 46th US Rock Mechanics / Geomechanics Symposium, Chicago, United States, (1-9). 24-27 June 2012.

  • Williams, D. J. (2012). In closing a surface waste rock dump it is not simply a matter of constructing a cover retrospectively. In: Andy Fourie and Mark Tibbett, Mine Closure 2012: Proceedings of the Seventh International Conference on Mine Closure. Seventh International Conference on Mine Closure, Brisbane, Australia, (379-392). 25-27 September 2012.

  • Karlovsek, Jurij, Scheuermann, Alexandar and Williams, David J. (2012). Investigation of voids and cavities in bored tunnels using GPR. In: 2012 14th International Conference on Ground Penetrating Radar (GPR), proceedings. 14th International Conference on Ground Penetrating Radar (GPR2012), Shanghai, China, (496-501). 4-8 June 2012. doi:10.1109/ICGPR.2012.6254916

  • Williams, David J., Scott, Peter A. and Gerrard, Jamie (2012). Rehabilitation commitments for pits and waste rock stockpiles at Frances Creek Iron Ore Mine. In: W. A. Price, C. Hogan and G. Tremblay, Proceedings of the 9th International Conference on Acid Rock Drainage. 9th International Conference on Acid Rock Drainage, Ottawa, ON, Canada, (). 20-26 May 2012.

  • Lacey, D., Look, B. and Williams, D. (2012). Shear strength anisotropy within an aged fill. In: ANZ 2012 Conference Proceedings. 11th Australia - New Zealand Conference on Geomechanics, Melbourne, Australia, (409-414). 15-18 July 2012.

  • Larisch, M. D., Nacke, E., Arnold, M., Williams, D. and Scheuermann, A. (2012). Simulation of auger displacement pile installation. In: G. Narsilio, A. Arulrajah and J. Kodikara, ANZ 2012 Conference Proceedings: Ground Engineering in a Changing World. 11th Australia - New Zealand Conference on Geomechanics, Melbourne, Australia, (37-42). 15-18 July 2012.

  • Alehossein, Habib, Serati, Mehdi and Williams, David J. (2012). Stress distribution inside thermally stable diamond composite picks used for abrasive hard rock cutting. In: ICDCM 2012: 23rd International Conference on Diamond and Carbon Materials, Granada, Spain, (P1.103-P1.103). 2–6 September, 2012.

  • Erarslan, N. and Williams, D. J. (2012). Understanding rock fatigue Part 1: degradation of rock fracturing resistance under cyclic loading. In: ISRM International Symposium - EUROCK 2012. Rock Engineering and Technology for Sustainable Underground Construction: Eurock 2012, Stockholm, Sweden, (1-10). 28-30 May 2012.

  • Erarslan, N. and Williams, D. J. (2012). Understanding rock fatigue Part II: possible damage mechanism. In: ISRM International Symposium - EUROCK 2012. Rock Engineering and Technology for Sustainable Underground Construction: Eurock 2012, Stockholm , Sweden, (1-9). 28-30 May 2012.

  • Chapman, P. J. and Williams, D. J. (2012). Using laboratory and in situ data to develop a tailings cover design model. In: Andy Fourie and Mark Tibbett, Mine Closure 2012: Proceedings of the Seventh International Conference on Mine Closure. Seventh International Conference on Mine Closure, Brisbane, Australia, (365-378). 25-27 September 2012.

  • Larisch, M. D., Scheuermann, A. and Williams, D. (2012). Zur Bemessung und Ausführung von Stabilisierungssäulen, hergestellt im Drehbohrverfahren. In: Baugrundverbesserung in der Geotechnik. 2. Symposium Baugrundverbesserung in der Geotechnik, Vienna, Austria, (). 13-14 September 2012.

  • Karlovsek, J., Scheuermann, A., Muller, W. and Williams, D. J. (2011). Application of ground penetrating radar to testing tunnel integrity. In: Proceedings: 14th Australasian Tunnelling Conference: Development of Underground Space. 14th Australasian Tunnelling Conference: Development of Underground Space, Auckland, New Zealand, (529-541). 8-9 March 2011.

  • Williams, D. J. (2011). Atmospheric drying and laboratory wetting of stockpiled product coal. In: Eduardo Alonso and Antonio Gens, Proceedings of the 5th International Conference on Unsaturated Soils. 5th International Conference on Unsaturated Soils, Barcelona, Spain, (513-518). 6-8 September 2010. doi:10.1201/b10526-75

  • Pedroso, D. M., Farias, M. M., Williams, D. J., Scheuermann, A. and Buzzi, O. (2011). Extended Barcelona basic model to the cyclic behaviour of unsaturated soils. In: Computer methods for geomechanics: Frontiers and new applications vol. 2. 13th International Conference of the International Association for Computer Methods and Advances in Geomechanics, Melbourne, Australia, (631-637). 9-11 May 2011.

  • Tiryaki, N. and Williams, D. J. (2011). Fatigue effects on fracturing resistance of rock. In: Craig J. L. Cowled, Proceedings of the First International Postgraduate Conference on Engineering, Designing and Developing the Built Environment for Sustainable Wellbeing (eddBE2011). 1st International Postgraduate Conference on Engineering, Designing and Developing the Built Environment for Sustainable Wellbeing (eddBE2011), Brisbane, Australia, (185-189). 27-29 April 2011.

  • Erarslan, N. and Williams, D. J. (2011). Investigating the effect of fatigue on fracturing resistance of rocks subjected to cyclic loading. In: Proceedings: 45th US Rock Mechanics / Geomechanics Symposium 2011. 45th US Rock Mechanics / Geomechanics Symposium 2011, San Francisco, CA, United States, (1333-1336). 26-29 June 2011.

  • Fortuna, S., Galindo-Torres, S. A. and Williams, D. J. (2011). Predicting the onset of instability of granular materials under undrained shearing using DEM simulations. In: 13th International Conference of the International Association for Computer Methods and Advances in Geomechanics (IACMAG 13), Melbourne, Australia, (1-4). 9-11 May 2011.

  • Pedroso, D., Sheng, D., Williams, D., Scheuermann, A., Farias, M. M. and Nakai, T. (2011). The SFG model for the cyclic behaviour of unsaturated soils. In: VII Brazilian Symposium on Unsaturated Soils - nSat2011, Pirenopolis, Brazil, (). 29-31 August 2011.

  • Williams, D. J. (2011). Water management in the Australian minerals industry. In: Proceedings of the 34th IAHR World Congress, 33rd Hydrology and Water Resources Symposium and 10th Conference on Hydraulics in Water Engineering. 34th IAHR World Congress, 33rd Hydrology and Water Resources Symposium and 10th Conference on Hydraulics in Water Engineering, Brisbane, Qld, Australia, (2201-2208). 26 June-1 July 2011.

  • Muller, Wayne, Karlovsek, Jurij, Reeves, Bryan, Scheuermann, Alexander, Dux, Peter and Williams, David (2010). Characterising moisture and other properties of civil engineering infrastructure using GPR. In: Klaus Kupfer, Aquametry 2010. First European Conference on Moisture Measurement Aquametry 2010, Weimar, Germany, (441-449). 5-7 October 2010.

  • Gowan, M., Lee, M. and Williams, D. J. (2010). Co-disposal techniques that may mitigate risks associated with storage and management of potentially acid generating wastes. In: Andy Fourie and Richard Jewell, Proceedings of the First International Seminar on the Reduction of Risk in the Management of Tailings and Mine Waste. The First International Seminar on the Reduction of Risk in the Management of Tailings and Mine Waste (MINE WASTE 2010), Perth, Australia, (389-404). 29 September - 1 October 2010.

  • Williams, D. J. and Stocker, P. T. (2010). Geotechnical parameters and behaviour of limonite. In: D. A. Cameron and W. Kaggwa, Proceedings of the 3rd International Conference on Problematic Soils. 3rd International Conference on Problematic Soils, Adelaide, Australia, (353-360). 7-9 April 2010.

  • Erarslan, N. and Williams, D. J. (2010). Mixed mode (Mode I-II) fracturing of rocks. In: Hossain Md. Shahin, Dorival M. Pedroso, Feng Zhang and Atsushi Yashima, New Frontiers in Computational Geotechnics. 5th International Workshop on New Frontiers in Computational Geotechnics NFCOMGEO V, Brisbane, Australia, (151-154). 26-27 July 2010.

  • Liu, H. Y., Liang, W. M. and Williams, D. J. (2010). Modelling dynamic fracture in mechanical rock cutting using SPAM. In: Jian Zhao, Vincent Labiouse, Jean-Paul Dudt and Jean-Francois Mathier, EUROCK 2010 Proceedings: Rock mechanics in civil and environmental engineering. European Regional Symposium of the International Society for Rock Mechanics (EUROCK 2010), Lausanne, Switzerland, (417-420). 15-18 June 2010.

  • Tiryaki, N., Williams, D. J., Alehossein, H. and Unver, B. (2010). Numerical modelling of indenter/rock interaction under various indenter profiles. In: Jian Zhao, Vincent Labiouse, Jean-Paul Dudt and Jean-Francois Mathier, Rock Mechanics in Civil and Environmental Engineering. European Rock Mechanics Symposium 2010, Lausanne, Switzerland, (413-416). 15-18 June 2010.

  • Chapman, Peter J., Williams, David J., Rhode, Timothy K. and Ennor, Steve J. (2009). Acid drainage management and closure design of a sulfidic tailings storage facility in a dry climate. In: Conference Proceedings of the Securing the Future and 8th International Conference on Acid Rock Drainage. Securing the Future and 8th International Conference on Acid Rock Drainage, Skelleftea, Sweden, (1-11). 23-26 June 2009.

  • Topal, Erkan and Williams, David J. (2009). Development and validation of a waste rock dumping optimisation model. In: Securing the Future and 8th International Conference on Acid Rock Drainage - Conference Proceedings. Securing the Future and 8th International Conference on Acid Rock Drainage, Skelleftea, Sweden, (1-11). June 23 - 26, 2009.

  • Rohde, Timothy K. and Williams, David J. (2009). Early hydrological monitoring of Cadia's instrumented trial waste rock dump. In: Conference Proceedings of the Securing the Future and 8th International Conference on Acid Rock Drainage. Securing the Future and 8th International Conference on Acid Rock Drainage, Skelleftea, Sweden, (1-12). 23-26 June 2009.

  • Williams, D. J. (2009). Laboratory versus field SWCC data. In: O. Buzzi, S. Fityus and D. Sheng, Unsaturated soils: Experimental studies in unsaturated soils and expansive soils. 4th Asia Pacific Conference on Unsaturated Soils, Newcastle, Australia, (227-232). 23 - 25 November 2009.

  • Liu, HY, Williams, DJ, Pedroso, DM and Liang, WM (2009). Numerical procedure for modelling dynamic fracture of rock by blasting. In: Chun'an Tang, Controlling Seismic Hazard and Sustainable Development of Deep Mines: 7th International Symposium on Rockburst and Seismicity in Mines (Rasim7) , Vol 1 and 2. 7th International Symposium on Rockburst and Seismicity in Mines, Dalian, China, (1551-1560). AUG 21-23, 2009.

  • Williams, D. J. and Rohde, T. K. (2009). Reliability of using laboratory-determined soil water characteristic data for mine waste cover design. In: Andy Fourie and Mark Tibbett, Mine Closure 2009: Proceedings of the Fourth International Conference on Mine Closure. Mine Closure 2009, Perth, Australia, (493-504). 9 - 11 September 2009.

  • Liu, Hongyuan, Alonso-Marroquin, Fernando and Williams, David (2009). Three-dimensional modelling of the rock breakage process. In: Ivan Vrkljan, Proceedings of the Regional Symposium of the International Society for Rock Mechanics (ISRM),. EUROCK'2009 - Rock Engineering in Difficult Ground Conditions - Soft Rocks and Karst, an ISRM-Sponsored Regional Symposium, Dubrovnik, Croacia, (283-289). 29-31 October 2009.

  • Chapman, P. J., Williams, D. J. and Rohde, T. K. (2009). Unsaturated behaviour of tailings during deposition and desiccation cycles with reference to closure design. In: O. Buzzi, S. Fityus and D. Sheng, Unsaturated soils: Experimental studies in unsaturated soils and expansive soils. 4th Asia Pacific Conference on Unsaturated Soils, Newcastle, Australia, (477-482). 23 - 25 November 2009.

  • Williams, D. J. (2009). Use of SWCCs to describe the dewatering of product coal. In: O. Buzzi, S. Fityus and D. Sheng, Unsaturated soils: Experimental studies in unsaturated soils and expansive soils. 4th Asia Pacific Conference on Unsaturated Soils, Newcastle, Australia, (233-238). 23 - 25 November 2009.

  • Williams, D.J., Topal, E., Zhang, N. and Scott, P.A. (2008). Development of a rock dump scheduling model using linear programming. In: Fourie, A., Proceedings of the First International Seminar on the Management of Rock Dumps, Stockpiles and Heap Leach Pads. Rock Dumps 2008, Perth, Western Australia, (129-137). 5-6 March 2008.

  • Williams, D.J. and Rohde, T.K. (2008). Rainfall infiltration into and seepage from rock dumps - A review. In: Fourie, A., Proceedings of the First International Seminar on the Management of Rock Dumps, Stockpiles and Heap Leach Pads. Rock Dumps 2008, Perth, Western Australia, (79-89). 5-6 March 2008.

  • Williams, D.J., Scott, P.A., Johnston, D. and Lee, G. (2008). Rock dump design to limit potential acid drainage. In: Fourie, A., Proceedings of the First International Seminar on the Management of Rock Dumps, Stockpiles and Heap Leach Pads. Rock Dumps 2008, Perth, Western Australia, (207-217). 5-6 March 2008.

  • Williams, D. J. (2008). The influence of climate on seepage from mine waste storages during deposition and post-closure. In: Fourie, A., Tibbett, M., Weiersbye, I. and Dye, P., Proceedings of the Third International Seminar on Mine Closure. Mine Closure 2008, Johannesburg, South Africa, (461-473). 14-17 October 2008.

  • Chapman, P. J., Williams, D. J., Rohde, T. K. and Ennor, S. J. (2008). Understanding the water balance of potentially acid forming tailings deposited in a dry climate. In: Andy Fourie, Mark Tibbett, Isabel Weiersbye and Peter Dye, Mine Closure 2008: Proceedings of the Third International Seminar on Mine Closure. Mine Closure 2008: The Third International Seminar on Mine Closure, Fourways, Johannesburg, S.A., (499-509). 14-17 October 2008.

  • Williams, D.J. and Rohde, T. (2008). Waste rock dump rainfall infiltration and base seepage at Cadia. In: Bell, L.C., Barrie, B.M.D., Braddock, B. and McLean, R.W., Proceedings of the Sixth Australian Workshop on Acid and Metalliferous Drainage. Sixth Australian Workshop on Acid and Metalliferous Drainage, Burnie, Tasmania, (151-162). 15-18 April 2008.

  • Williams, D.J. (2007). Compaction of coal mine rejects to limit the potential for spontaneous combustion. In: Ameratunga, J., Taylor, B. and Patten, M., Proceedings of the 10th Australia New Zealand Conference in Geomechanics 2007. Common Ground, Brisbane, Queensland, Australia, (410-415). 21-24 October, 2007.

  • Williams, D.J. and Rohde, T.K. (2007). Saturation required for continuum flow through different mine waste materials. In: Ameratunga, J., Taylor, B. and Patten, M., Proceedings of the 10th Australia New Zealand Conference in Geomechanics 2007. Common Ground, Brisbane, Queensland, Australia, (280-285). 21-24 October, 2007.

  • Williams, D.J. and Rohde, T.K. (2007). Strategies for reducing seepage from surface waste rock piles during operation and post-closure. In: Fourie, A., Tibbett, M. and Wiertz, J., Proceedings of the Second International Seminar on Mine Closure. Mine Closure 2007, Santiago, Chile, (521-532). 16-19 October 2007.

  • Williams, D J, Mulligan, D R and Currey, N A (2006). A reflection and analysis of the waste rock dump closure strategies at Kidstone Gold Mine. In: A Fourie and M Tibbett, First International Seminar on Mine Closure. First International Seminar on Mine Closure, Perth, Western Australia, (463-472). 13-15 September 2006.

  • Williams, D J, Rohde, T K, Stolberg, D. J. and Pope, G (2006). Alernative design and instrumentation of covers over potentially acid forming mine wastes. In: H R Thomas, Fifth International Congress on Environmental Geotechnics. Fifth International Congress on Environmental Geotechnics, Wales, United Kingdom, (1007-1014). 26-30 June 2006.

  • Williams, D J (2006). Application of unsaturated soil mechanics to product coal dewatering. In: M Hood and P Lever and P Knights, 2006 Australian Mining Technology Conference "Value through cost control". 2006 Australian Mining Technology Conference "Value through cost control", Hunter Valley, NSW, Australaia, (223-235). 26-27 September 2006.

  • Williams, D J and Stolberg, D. J. (2006). Erosional stability of tailings store facilities in an arid climate. In: H R Thomas, Fifth International Congress on Environmental Geotechnics. Fifth International Congress on Environmental Geotechnics, Wales, United Kingdom, (999-1006). 26-30 June 2006.

  • Creagh, M S, Williams, D J and Wijeyakulasuriya, V (2006). Fault tree analaysis and risk assessment for the performance of unbound granular paving materials. In: ARRB Group Ltd, Twenty-second Australian Road Resaerch Board Conference. Twenty-second Australian Road Resaerch Board Conference, Canberra, ACT, Australia, (1-17). 29 October - 2 November 2006.

  • Williams, D J and Stolberg, D. J. (2006). Field performance of capillary break covers over hypersale tailings in an Arid Climate. In: G A MIller, C E Zapata and S J Houston, Fourth International Conference on Unsaturated Soils. Fourth International Conference on Unsaturated Soils, Arizona, USA, (777-788). 2-6 April 2006.

  • Williams, D J and Kline, J T (2006). Innovative mine closure design based on observations of mine and natural analogues. In: A Fourie and M Tibbett, First International Seminar on Mine Closure. First International Seminar on Mine Closure, Perth, Western Australia, (559-568). 13-15 September 2006.

  • Williams, D J and Stolberg, D. J. (2006). Large-scale column testing of hypersaline tailings. In: H R Thomas, Fifth International Congress on Environmental Geotechnics. Fifth International Congress on Environmental Geotechnics, Wales, United Kingdom, (976-983). 26-30 June 2006.

  • Williams, D J, Stolberg, D. J. and Currey, N A (2006). Long-term monitoring of Kidston's "store/release" cover system over potentially acid forming waste rock piles. In: R J Barnhisel, Seventh International Conference on Acid Rock Drainage. Seventh International Conference on Acid Rock Drainage, Missouri, USA, (2385-2396). 26-30 March 2006.

  • Williams, D J and Stolberg, D. J. (2006). Long-term performance of a "store/release" cover over potentially acid forming waste rock in a semi-arid climate. In: G A MIller, C E Zapata and S J Houston, Fourth International Conference on Unsaturated Soils. Fourth International Conference on Unsaturated Soils, Arizona, USA, (756-776). 2-6 April 2006.

  • Williams, D J (2006). Mine closure as a driver for waste rock dump constructions. In: A Fourie and M Tibbett, First International Seminar on Mine Closure. First International Seminar on Mine Closure, Perth, Western Australia, (697-706). 13-15 September 2006.

  • Williams, D J (2006). The case for revolutionary change to mine waste disposal rehabilitation. In: Y Potvin, Second International Seminar on Strategic versus Tactical Approaches to Mining. Second International Seminar on Strategic versus Tactical Approahces to Mining, Perth, Western Australia, (1-10). 8-10 March 2006.

  • Gurgenci, H., Williams, D. J., Kouzani, A and Groenland, R (2005). Haul Road Dust Suppression. In: H Gurgenci, M Hood, P Lever and P Knights, 2005 Australian Mining Technology Conference - New Technologies to Produce More with Less. Proceedings of the 2005 Australian Mining Technology Conference, Freemantle, Western Australia, (231-238). 27-28 September 2005.

  • Stolberg, D. J. and Williams, D. J. (2004). Cover systems for hypersaline tailings in an arid climate. In: C D Shackelford, Proceedings of the Eleventh Tailings and Mine Waste Conference. Tailings and Mine Waste '04, Colorada, USA, (153-159). 10-13 October 2004.

  • Williams, D. J. and Stolberg, D. J. (2004). Erosional stablility of tailings storage facilities in an arid climate. In: C D Shackelford, Proceedings of the Eleventh Tailings and Mine Waste Conference. Tailings and Mine Waste '04, Colorada, USA, (55-61). 10-13 October 2004.

  • Williams, D. J. and Currey, N A (2004). Innovative mine site rehabilitation in a semi-arid climate. In: C D Shackelford, Proceedings of the Eleventh Tailings and Mine Waste Conference. Tailings and Mine Waste '04, Colorada, USA, (383-391). 10-13 October 2004.

  • Williams, D. J., Loch, R J and Vacher, C (2004). Risk assessment applied to tunnel erosion of mine spoils. In: C D Shackelford, Proceedings of the Eleventh Tailings and Mine Waste Conference. Tailings and Mine Waste '04, Colorada, USA, (63-70). 10-13 October 2004.

  • Williams, D.J., Currey, N. A., Ritchie, P.J. and Briese, E.H. (2003). A case study of water management on closure of an open pit mining operation in North Queensland, Australia. In: Water in Mining : [proceedings]. Water in Mining 2003, Brisbane, Australia, (323-330). 13-15 October 2003.

  • Williams, D.J., Jeffery, J., Gilbert, L., Wilson, G.W., Panidis, C. and Perry, B. (2003). A review of the acid rock drainage potential and hyrological implications of selectively-placed waste rock at a gold mine in NSW, Australia. In: T Farrell and G Taylor, Proceedings of 6th International Conference on Acid Rock Drainage. 6th International Conference on Acid Rock Drainage, Cairns, Australia, (949-956). 14-17 July 2003.

  • Wilson, G.W., Plewes, H.D., Williams, D.J. and Robertson, J. (2003). Concepts of co-mixing of tailings and waste rock. In: T Farrell and G Taylor, Proceedings of 6th International Conference on Acid Rock Drainage. 6th Internatinal Conference on Acid Rock Drainage, Cairns, Australia, (437-443). 14-17 July 2003.

  • Fines, P., Wilson, G.W., Williams, D.J., Tran, A. B. and Miller, S. (2003). Field characterisation of two field-scale waste rock piles. In: T Farrell and G Taylor, Proceedings of 6th International Conference on Acid Rock Drainage. 6th Internatinal Conference on Acid Rock Drainage, Cairns, Australia, (903-909). 14-17 July 2003.

  • Tran, A. B., Miller, S., Williams, D.J., Fines, P. and Wilson, G.W. (2003). Geochemical and mineralogical characterisation of two contrasting waste rock dumps - the INAP waste rock dump characterisation project. In: T Farrell and G Taylor, Proceedings of 6th International Conference on Acid Rock Drainage. 6th International Conference on Acid Rock Drainage, Cairns, Australia, (939-947). 14-17 July 2003.

  • Williams, D.J., Currey, N.A., Ritchie, P. J. and Wilson, G.W. (2003). Kidston waste rock dump design and "store and release" cover performance seven years on. In: T Farrell and G Taylor, Proceedings of 6th International Conference on Acid Rock Drainage. 6th Internatinal Conference on Acid Rock Drainage, Cairns, Australia, (419-426). 14-17 July 2003.

  • Williams, D.J., Currey, N.A. and Ritchie, P. J. (2003). Successful tailings dam design, construction, operation and closure - a case study. In: G Guertin, Proceedings of International Symposium on Major Challenges in Tailings Dams. International Symposium on Major Challenges in Tailings dams, Montreal, Canada, (320-330). 15 June 2003.

  • Cambpell, H. F., Golding, B. and Williams, D. (2003). Sustainable cost-effective mined land reclamation. In: National Environment Conference 2003, Brisbane, Australia, (). 18-20 June 2003.

  • Wilson, G.W., Williams, D.J. and Rykaart, E.M. (2003). The integrity of cover systems - an update. In: T Farrell and G Taylor, Proceedings of 6th International Conference on Acid Rock Drainage. 6th Internatinal Conference on Acid Rock Drainage, Cairns, Australia, (445-451). 14-17 July 2003.

  • Williams, D.J., Wilson, G.W. and Panidis, C. (2003). Waste rock and tailings mixtures as a possible seal for potentially acide forming waste rock. In: T Farrell and G Taylor, Proceedings of 6th International Conference on Acid Rock Drainage. 6th International Conference on Acid Rock Drainage, Cairns, Australia, (427-435). 14-17 July 2003.

  • Williams, D. J., Stolberg, D. J. and Bentel, G.M. (2002). Cover trials on saline tailings storage facilities compared with a natural salt pan analogue. In: L G de Mello and M Almeida, Proceedings of the Fourth International Congress on Environmental Geotechnics. Fourth International Congress on Environmental Geotechnics, Rio de Janeiro, Brazil, (297-300). 11-15 August 2002.

  • Williams, D. J., Stolberg, D. J. and Poole, G. (2002). Monitoring erosion off unvegetated mine tailings facilities and natural slopes using high-resolution, digital stereo-photography. In: L G de Mello and M Almeida, Proceedings of the Fourth International Congress on Environmental Geotechnics. Fourth International Congress on Environmental Geotechnics, Rio de Janeiro, Brazil, (291-296). 11-14 August 2002.

  • Williams, David J. (2002). Sensitivity analyses of a risk assessment model applied to the rehabilitation of open cut coal mine spoil areas. In: 4th International Congress on Environmental Geotechnics, Rio de Janeiro, Brazil, (383-387). 11-15 August 2002.

  • Williams, D. J. (2002). Sensitivity analyses of a risk assessment model applied to the rehabilitation of open cut coast mine spoil areas. In: L G Mello and M Almeida, Proceedings of the Fourth International Congress on Environmental Geotechnics. Fourth International Congress on Environmental Geotechnics, Rio de Janeiro, Brazil, (383-388). 11-15 August 2002.

  • Williams, D. J. and Bentel, G.M. (2001). Alternative approaches to closure of tailings storage facilities. In: B. Ohlander, Proceedings of International Conference on Mining and the Environment. Securing the Future, Skelleftea, Sweden, (915-924). 14-18 October 2001.

  • Williams, David J. and Bentel, G. M. (2001). Alternative approaches to closure of tailings storage facilities in an arid climate. In: International Conference on Mining and the Environment - Securing the Future, Skelleftea, Sweden, (915-924). 25 June-1 July 2001.

  • Williams, D.J., Wilson, G.W., Curry, N.A. and Ritchie, P.J. (2001). Engineering aspects of the rehabilitation of an open pit gold operation in a semi-arid climate. In: J. Allen, Proceedings of 26th Annual Minerals Council of Australia Environmental Workshop. Back to the Future, Adelaide, Australia, (289-307). 14-17 October 2001.

  • Williams, D.J. (2001). Mined landform design. In: D. Smith, S. Fityus and M. Allman, Proceedings of 2nd Australia-New Zealand Conference on Environmental Geotechnics. GeoEnvironment 2001, Newcastle, Australia, (619-635). 28-30 November 2001.

  • Williams, D. J. and Wilson, G.W. (2001). Potential use of waste rock and tailings mixtures as a cover for potenially acid forming waste rock. In: B. Ohlander, Proceedings of International Conference on Mining and the Environment. Securing the Future, Skelleftea, Sweden, (934-943). 14-18 October 2001.

  • Williams, David J. and Wilson, G. Ward (2001). Potential use of waste rock and tailings mixtures as a cover for potentially acid forming waste rock. In: International Conference on Mining and the Environment - Securing the Future, Skelleftea, Sweden, (934-943). 25 June to 2 July 2001.

  • Williams, D. J., Gowan, M. J. and Golding, B. (2001). Risk Assessment approach to open cut coal mine spoil rehabilitation. In: Proceedings of International Conference on Mining and the Environment. Securing the Future, Skelleftea, Sweden, (925-933). 14-18 October, 2001.

  • Williams, D. J. (2000). Extension of agriculture-based erosion prediction to steep mine waste slopes. In: G Borel, 5th International Symposium on Environmental Geotechnology and Global Sustainable Development. 5th International Symposium on Environmental Geotechnology and, Belo Horizonte, Minas Gerais, Brazil, (). 17-23 August 2000.

  • Gowan, M. J., Williams, D. A. and Williams, D. J. (2000). Risk assessment approach to rehabilitation of Bowen Basin open cut coal mine spoil areas. In: GeoEng 2000, An International Conference on Geotechnical & Geological Engineering. GeoEng 2000, An International Conference on Geotechnical & Gegological Engineering, Melbourne, Australia, (). 19-24 November 2000.

  • Williams, D. J. (2000). The environment impacts of open pit mining in perspective. In: G. Borel, 5th International Symposium on Environmental Geotechnology and Global Sustainable Development. 5th International Symposium on Environmental Geotechnology and Global Sustainable Development, Belo Horizonte, Minas Gerais, Brazil, (). 17-23 August 2000.

  • Williams, D. J., Chen, H. and Sabri, Y. (1999). Stability of mine tailings impoundment structure after decommissioning. In: Vitharana, N. and Colman, R., Proceedings of 8th Australia-New Zealand Conference on Geomechanics. Proceedings of 8th Australia-New Zealand Conference on Geomechanics, Hobart, (543-549). 14-19 February 1999.

  • Rassam, D. and Williams, D. J. (1999). Undrained bearing capacity of unsaturated tailings. In: Vitharana, N. and Colman, R., Proceeding of 8th Australia-New Zealand Conference on Geomechanics. 8th Australia-New Zealand Conference on Geomechanics, Hobart, (329-335). 14-19 February 1999.

  • Williams, David J. and Morris, Peter H. (1988). Properties of slurried coal tailings. In: ASCE Geotechnical Specialty Conference on Hydraulic Fill Structures, Denver, USA, (410-429). August 1988.

Grants (Administered at UQ)

PhD and MPhil Supervision

Current Supervision

  • Master Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

  • Master Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

  • Doctor Philosophy — Principal Advisor

    Other advisors:

  • Doctor Philosophy — Principal Advisor

  • Master Philosophy — Principal Advisor

    Other advisors:

  • Master Philosophy — Principal Advisor

  • Doctor Philosophy — Associate Advisor

    Other advisors:

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

  • Doctor Philosophy — Associate Advisor

Completed Supervision

Possible Research Projects

Note for students: The possible research projects listed on this page may not be comprehensive or up to date. Always feel free to contact the staff for more information, and also with your own research ideas.

  • Risk assessment and cost-effectiveness analysis techniques are becoming an essential tool in defending the choice of rehabilitation strategy for open cut mines. An existing risk assessment and cost-effectiveness analysis tool developed for the rehabilitation of open cut coal mine spoil areas will be applied to a number of typical spoil areas, and the cost-effectiveness of different rehabilitation strategies assessed.

  • Surface coal mining by dragline leaves a legacy of surface disturbance in the form of spoil piles. The rehabilitation of spoil pile areas involves substantial earthworks, which constitute the major cost of rehabilitation. Minimising the amount of earthworks required minimises the cost of rehabilitation. Typically, spoil piles are reshaped from the angle of repose of the spoil (about 37 degrees) to a constant angle of less than 10 degrees. An alternative strategy would be to reproduce, as closely as possible, the pre-mining distribution of slope angles and lengths, which can be determined from pre-mining topographic plans. By comparing the pre-mining and post-mining topographic plans, it is possible to determine the minimum earthworks required to mimic the general pre-mining landform.

  • The requirements of a cover material for potentially contaminating materials, whether they be sulphidic or saline mine wastes, industrial, or domestic wastes, is that the material can achieve a low hydraulic conductivity, preferably hold saturation, be resistant to desiccation and erosion, and possibly be suitable as a growth medium. There is potential for mixtures of inert, durable waste rock and tailings to satisfy these requirements. A range of waste rock and tailings mixtures will be assessed for their suitability in the laboratory.

  • Coal washing is carried out in order to produce a product that meets market specifications. The waste products from washing coal are coarse reject, typically in the size range from 50 mm down to 0.5 mm and tailings typically passing 0.5 mm. Conventionally, the two waste streams are disposed of separately, the coarse reject to surface dumps and the tailings as an aqueous slurry to a surface storage facility. A number of mines dispose of the two waste streams together by pumping. The applicability of the pumped co-disposal of coal washery wastes depends on a number of parameters, which can be assessed by laboratory testing and field trials. The focus of the thesis will be laboratory testing for suitability to pumped co-disposal.

  • Laboratory leachate columns are used to simulate the leachate likely to be generated under field conditions. However, the columns are typically put through regular cycles of air-flow and flooding, during which leachate samples are collected for analysis. The Australian climate is anything but regular. A number of columns will be filled with potentially acid forming waste rock, and each subjected to a different sequence of air-flow and flooding, ranging from a regular sequence of events to replicating actual climatic conditions, and the resulting leachate quality and quantity compared.

  • Mine tailings are conventionally disposed of as an aqueous slurry to a surface storage facility. During the operation of the facility, water is decanted from the tailings and recycled to the processing plant. Incident rainfall must also be accommodated, with water lost to evaporation, seepage and entrainment within the tailings. On closure of the facility, the water balance includes incident rainfall, infiltration, evaporation and seepage. The laboratory column experiment will impose various aqueous boundary conditions on a 2 m high column of tailings, which will be instrumented to determine the moisture and suction profiles of the tailings and hence the direction and magnitude of any flow.

  • Erosion off disturbed slopes, such as mined land, is difficult to measure. Conventionally, sediment traps are constructed at the toe of the slope to collect both bed load and suspended sediment. However, these systems are difficult and expensive to maintain. An alternative method is the use of high-resolution digital stereo-photographs, from which a three-dimensional image of the slope can be constructed using specialised software. The three-dimensional image highlights erosion gullies and sediment plumes, and allows the erosion loss and downstream sedimentation to be calculated digitally. The surface texture of the slope can also be estimated digitally from close-up digital photographs. This technique will be applied to mine slopes in the Ipswich Coalfields, which were studied 12 months earlier, allowing an accurate picture to be obtained of the erosion loss over the 12 month period.